Trans‐10 18:1 in ruminant meats: A review
- 4 October 2021
- Vol. 56 (6), 539-562
- https://doi.org/10.1002/lipd.12324
Abstract
Trans (t) fatty acids (TFA) from partially hydrogenated vegetable oils (i.e., industrial trans) have been phased out of foods in many countries due to their promotion of cardiovascular disease. This leaves ruminant-derived foods as the main source of TFA. Unlike industrial TFA where catalytic hydrogenation yields a broad distribution of isomers, ruminant TFA are enzymatically derived and can result in enrichment of specific isomers. Comparisons between industrial and ruminant TFA have often exonerated ruminant TFA due to their lack or at times positive effects on health. At extremes, however, ruminant-sourced foods can have either high levels of t10- or t11-18:1, and when considering enriched sources, t10-18:1 has properties similar to industrial TFA, whereas t11-18:1 can be converted to an isomer of conjugated linoleic acid (cis(c)9,t11-conjugated linoleic acid), both of which have potential positive health effects. Increased t10-18:1 in meat-producing ruminants has not been associated with negative effects on live animal production or meat quality. As such, reducing t10-18:1 has not been of immediate concern to ruminant meat producers, as there have been no economic consequences for its enrichment; nevertheless at high levels, it can compromise the nutritional quality of beef and lamb. In anticipation that regulations regarding TFA may focus more on t10-18:1 in beef and lamb, the present review will cover its production, analysis, biological effects, strategies for manipulation, and regulatory policy.Keywords
This publication has 146 references indexed in Scilit:
- Detailed Dimethylacetal and Fatty Acid Composition of Rumen Content from Lambs Fed Lucerne or Concentrate Supplemented with Soybean OilPLOS ONE, 2013
- Short Communication: Rapid separation of cis9, trans11- and trans7,cis9-18:2 (CLA) isomers from ruminant tissue using a 30 m SLB-IL111 ionic columnCanadian Journal of Animal Science, 2011
- Review:Trans-forming beef to provide healthier fatty acid profilesCanadian Journal of Animal Science, 2011
- Effects of Ruminant trans Fatty Acids on Cardiovascular Disease and Cancer: A Comprehensive Review of Epidemiological, Clinical, and Mechanistic StudiesAdvances in Nutrition: An International Review Journal, 2011
- Livestock production: recent trends, future prospectsPhilosophical Transactions B, 2010
- Feeding wheat dried distillers grains with solubles improves beef trans and conjugated linoleic acid profiles1Journal of Animal Science, 2010
- Effect of Animal and Industrial Trans Fatty Acids on HDL and LDL Cholesterol Levels in Humans – A Quantitative ReviewPLOS ONE, 2010
- Utilization of extruded linseed to modify fatty composition of intensively-reared lamb meat: Effect of associated cereals (wheat vs. corn) and linoleic acid content of the dietMeat Science, 2010
- Effect of level of linseed on fatty acid composition of muscles and adipose tissues of lambs with emphasis on trans fatty acidsMeat Science, 2007
- The effect of production system and age on concentrations of fatty acids in intramuscular fat of the longissimus and triceps brachii muscles of Angus-cross heifersMeat Science, 2005